Mind can exist in three different states - Positive, Negative and Neutral. Positive is रज् , Negative is तम् and Neutral is सत्.
Positive mindset promotes action (being ambitious); Negative mindset promotes indolence; and Neutral mindset promotes tranquility.
Positive & Negative states instigate Action & Inaction respectively. Whereas the thirds start (Neutral) brings about Awareness, this is beyond action & inaction.